What is the balance equation for

_ Ba + _ HNO3 —> _ H2 + _ Ba(NP3)2


_ H3PO4 + _ NaOH —> _ H2O + _ Na3PO4

Answers

Answer 1

1st one

2_2_2

2nd one

3_1_1_3

i looked it up


Related Questions

as the balloon rises what happens to the external pressure

Answers

Answer:

As the ballon rises higher the atmospheric pressure will drop if the ballon is made of an elastic material,it will stretch to allow the gas inside it to expand

A precipitation reaction 2. A Lewis acid-base reaction the produces a coordination complex: A Lewis acid-base reaction the produces a coordination complex 3. An oxidation-reduction reaction that is also a synthesis reaction: An oxidation-reduction reaction that is also a synthesis reaction Column B a. Pb2 (aq0 CrO42-(aq) --> PbCrO4(s) b. 2 Mg(s) O2(g) -> 2 MgO(s) c. Ag (aq) 2NH3(aq) --> [Ag(NH3)2] (aq)

Answers

Answer:

Pb2+ (aq) + CrO42-(aq) --> PbCrO4(s) - A precipitation reaction

2 Mg(s) + O2(g) -> 2 MgO(s) - An oxidation-reduction reaction that is also a synthesis reaction

Ag^+ (aq) + 2NH3(aq) --> [Ag(NH3)2]^+ (aq) - A Lewis acid-base reaction the produces a coordination complex

Explanation:

A precipitation reaction is one in which two aqueous reactants yields an insoluble product called a precipitate as shown in reaction 1 above.

In the second reaction Mg is oxidized from zero to + 2 while oxygen was reduced from zero to -2 as the MgO is formed hence the reaction is an oxidation-reduction reaction that is also a synthesis reaction.

In the third reaction, Ag^+ a Lewis acid reacts with NH3, a lewis base to yield the complex [Ag(NH3)2]^+.

what charge does an atom that has lost electrons have?​

Answers

Answer:

when an atom loses electrons, it will then contain more protons. Thus, the charge of the atom become positive.

Grease is applied to the moving part of machine.

Answers

Answer:

Explanation:

The moving part won't move on its own there's a force but the force isn't enough for something like a bike chain it need grease to move smoothly or else it will just be super stuck or slow.

Answer:

because grease produce more fiction which helps moving part of machine not get jamm while working

what is the name of this organic molecule

Answers

Answer:

C2H4 Ethylene

Explanation:

Hope it helps! :)


500kg, 42m, 675g, and 10m/s are all examples of what typed of data?b

Answers

500kg, 42m, 675g, and 10m/s are all examples of a: continuous data.

A numerical data can be defined as a data set that is expressed in numbers only or a data set consisting of numbers rather than words. A numerical data is also known as a quantitative data.

Generally, numerical data are classified into two (2) main categories and these are;

Discrete data: a discrete data is a data set in which the number of possible values are either finite or countable. Some examples are; the value of a fair die, number of pen in a box, number of eggs in a crate, etc.Continuous data: a continuous data is a data set that has infinitely many possible values and as such those values cannot be counted, which simply means they are uncountable. Any data (quantity) such as mass, height, volume, weight, density, velocity, length, pressure, temperature, speed, distance, time are generally classified as continuous data.

In conclusion, mass (500 kg), height (42m), mass (675g), and speed (10m/s) are all examples of a: continuous data.

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write its IUPAC name?​

Answers

Answer:

Hello

please make sure that there is any group which is join with alkane

why metals are not often used to
make clothes

Answers

Answer:

They would be to heavy and you would be really stiff

Explanation:

Imagine walking in a suit made of iron or tin

You would feel like the Tin Man

You would be stiff

Metals are hard and heavy

Which statements are true in regard to the VSEPR theory?
Select all that apply.

Molecules acquire a shape that results in the greatest charge.

Molecules acquire a shape that minimizes the repulsions of electron groups.

Molecules acquire a shape that maximizes the distance of electron groups.

Molecules acquire a shape that results in the lowest possible energy state.

Answers

The correct option is D. 2) Anti-bonding electrons or lone pairs. These lone pairs, and bonds helps to form the shape which keeps these electrons separate as possible.

Question 14 (Essay Worth 10 points) (03.05 MC) Use complete sentences to differentiate between acids and bases on the basis of touch. Give an example of each type.​

Answers

Answer:

Acid is a molecule capable of donating hydrogen ion and they form aqueous solutions with a sour taste while base is a substance that accepts proton from proton donor and in aqueous solution, they have an astringent or bitter taste. Moreover, a good example for base is sodium hydrogen carbonate as baking soda or baking powder and for acid, the most common example is the acetic acid or vinegar.

Answer:

Well, for starters, bases mostly consist of soaps and cleaning products, acids consist of vinegar,lemon,and stuff like that. Most acids on the basis of touch can burn your skin or be very sour, unlike bases which are more soapy and have a cleaner touch.A good example of an acid is vinegar, which can be used for cleaning but can also be used for making foods, on the other hand. A good example of a base is dish soap. It is used for cleaning.

Explanation:

i just did the exam and got a 100

ii)The outer electronic configuration of an element is 3d8 4s2
.To which group and period it belongs?

Answers

Answer:

group ten period four. that's the answer

Complete and write net ionic equation:
NH3 + HCI->

Answers

Answer:

IONIC EQUATION OF NH3 AND HCL IS NH4CL

Write the empirical formula for at least four ionic compounds that could be formed from the following ions: NO3, Pb^4+, NH4, SO4

Answers

Explanation:

here's the answer to your question

double arrow just mean that it's a reversible process, and the reaction can go back and forth.

help me pls! plsssss​

Answers

Answer:

Neutron, neutral subatomic particle that is a constituent of every atomic nucleus except ordinary hydrogen. It has no electric charge and a rest mass equal to 1.67493 × 10−27 kg—marginally greater than that of the proton but nearly 1,839 times greater than that of the electron.

What is the balanced form of the chemical equation shown below?
C2H5OH() + O2(9)
H2O() + CO2(9)
A. C2H5OH() + 302(9) — 3H20() + 2002(9)
B. 2C2H5OH() + O2(g) – 5H20(1) + CO2(g)
C. C2H20(1) + 202(9)
-
H20(1) + 2C02(9)
D. C2H5OH() + O2(g) → H20(1) + CO2(g)

Answers

Answer:

C2H5OH +3O2 = 2Co2+ 3H2O

Explanation:

The balanced chemical equation is C2H5OH + 302 → 3H20 + 2CO2.

What is balanced chemical equation?

A balanced chemical equation is one in which the count of atoms in all of the molecules is equivalent on both sides of the equation. The balancing of a particular chemical equation is governed by the Law of Conservation of Mass.

Balancing chemical equation is shown as below:

It can be seen that the count of carbon atom in left side 2 on the other hand the count of carbon in right side only one. By multiply with 2 in right side of the reaction , equation will be balanced.

Therefore, the balanced chemical equation is C2H5OH + 302 → 3H20 + 2CO2.

To know more about balanced chemical equation .

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Usually scientists do not specialize and study one aspect of the
natural world, but will focus on many aspects to understand
why and how things happen.
TRUE
FALSE

Answers

If This is a true or false question then this is true.

What temperature scale is used in the ideal gas equation

Answers

Answer:

kelvin scale?

Explanation:

i`m not 100% on this one

calculate the volume of the object immersed in the water in the water in the adjoining figur. ​

Answers

Answer:

100 cm³

Explanation:

Hi there!

Subtract:

400 cm³ - 300 cm³

= 100 cm³

Therefore, the volume of the object is 100 cm³.

I hope this helps!

Which statement is true?

A. In an exothermic reaction, the energy of the products is the same as the energy of the reactants.

B. In an endothermic reaction, the energy of the products is the same as the energy of the reactants.

C. In an endothermic reaction, the energy of the products is greater than the energy of the reactants.

D. In an exothermic reaction, the energy of the products is greater than the energy of the reactants.

Answers

Exothermic reaction is where there is release of energy during a reaction

The enthalpy of exothermic reaction is negative

The relation between energy of products, reactants and enthalpy of reaction is

Enthalpy of reaction =  sum of enthalpy of formation of products - sum of enthalpy of formation of reactants .

As enthalpy of reaction is negative, it means the enthalpy of products is less than the enthalpy of reactants  so answer is :

In an exothermic reaction the energy of the product is less than the energy of the reactants.

C.

An endothermic reaction is a reaction that absorbs heat from the surroundings. That means that the energy of the system must increase. Therefore, the answer must be C as the products should have higher energy than the reactants.

a. For a chemistry lab final exam, a high school chemistry student was given a 1-mole sample of CaCl2 and a 1-mole sample of MgCl2 but was not told which sample was which. He was to identify the powders.

He looked up the enthalpies of formation for both of the chemicals and calculated the ΔHreaction for dissolving each powder: CaCl2 (s) Ca 2+ (aq) + 2Cl – (aq), and MgCl2 (s) Mg 2 (aq) + 2Cl – (aq). He then put each powder in a coffee-cup calorimeter and added water.

When sample A dissolved, the temperature increased by 0.74°C. When sample B dissolved, the temperature increased by 0.39°C. Which chemical was A, and which was B? Use the table of enthalpies of formation to help you. Explain your reasoning.

Answers

Ca^2+ ion  is smaller than Mg^2+ ion hence it has a greater heat of formation or lattice energy.

When a crystal lattice is formed, the energy that is released if the component ions of the compound are brought together from infinity is called the lattice energy. It is the energy released when a crystal lattice is formed from its component ions.

The question lets us know that the heat released by the compounds depends on the energy released upon formation of the compound. Hence, the higher the energy released upon formation, the higher the magnitude of heat released upon dissolution of the compound.

Recall that lattice energy depends on the size of the ions. Thus, the smaller the ions, the higher the lattice energy.

Ca^2+ is smaller than Mg^2+ hence more energy is given off when CaCl2  is formed than when MgCl2  is formed.

As stated above, the greater the lattice energy, the greater the heat released when the lattice dissolves and the higher the rise in temperature.

Putting all these together, Sample A must be CaCl2 while sample B must be MgCl2.

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Color of the CuCl2 hydrate before heating:

Answers

hydrated cucl2 have blue-green colour

12. State duplet and duplet rule. Explain in brief with examples .

Answers

Answer:

I HOPE THE ABOVE INFORMATION WILL HELP YOU A LOT.

Cellular respiration occur within ______ of a cell.


Answers

Answer:

The mitochondria

Explanation:

Its where cellular respiration occurs

Suppose 'A' is a liquid aromatic compound with molecular weight 78 and burns with sooty flame. a.Give the name of the compound 'A' b.write the molecular structure of 'A' C. What is the product when 'A' is treated with ? i.conc.HNO3 with conc.H2SO4 as catalyst ii.Halogen (cl2)in presence of sunlight and mention the use of the product obtained​

Answers

Aromatic compounds are compounds that contain carbon-carbon multiple bonds.

The question did not mention that a heteroatom is present in the compound so we can assume that there is none of such. In that case, the compound contains only hydrogen and carbon.

So,

(CH)n = 78

where n is the number of each atom present.

(12 +1)n = 78

n = 78/13

n = 6

The molecular formula of the compound is C6H6

When C6H6 is treated with .conc.HNO3/conc.H2SO4 the compound shown in image 1 is formed. The reaction occurs at the C-C multiple bond.

When C6H6 is reacted with chlorine in the presence of sunlight, hexachlorobenzene (shown in image 2 attached) is formed.

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Describe the formation of oxygen molecule​

Answers

Answer:

oxygen molecule has two oxygen atom . Each O atom share 2 electrons to form two covalent bonds out of which one is sigma bond and other is pi bond . sigma bond is formed by axial overlap 2p atomic orbitals of oxygen and pi bond is formed of lateral overlap of 2p atomic orbitals of oxygen .

3 point different between reactant and product​

Answers

Answer:

reactants

The substance(s) to the left of the arrow in a chemical equation are called reactants. A reactant is a substance that is present at the start of a chemical reaction

Explanation:

product_The substance(s) to the right of the arrow are called products . A product is a substance that is present at the end of a chemical reaction. In the equation above, the zinc and sulfur are the reactants that chemically combine to form the zinc sulfide product.

There is a standard way of writing chemical equations. The reactants are all written on the left-hand side of the equation, with the products on the right-hand side. An arrow points from the reactants to the products to indicate the direction of the reaction:

reactants → products

Reactants

1. The substances used as starting materials and which react with one another are reactants.

2. Example: In this reaction Mg and O2 are reactants.

Products

1. The substances which are formed as a result of reaction are products.

2. Example: In this reaction MgO is a product.

Oxide of nitrogen that is acidic

Answers

Answer:

Nitrogen oxides are used in the production of nitric acid, lacquers, dyes, and other chemicals. Nitrogen oxides are used in rocket fuels, in the nitrification of organic chemicals, and in the manufacture of explosives.

Explanation:

help pls I really need the answer I will brainlest​

Answers

Answer:

Latitude: the angular distance of a place north or south of the earth's equator, or of a celestial object north or south of the celestial equator, usually expressed in degrees and minutes. (Left to right)

Longitude: the angular distance of a place east or west of the meridian at Greenwich, England, or west of the standard meridian of a celestial object, usually expressed in degrees and minutes. (Up and down)

What is the volume occupied by 2.34 grams of CO2 gas at STP?​

Answers

Answer:

The volume occupied by 2.34 grams of CO2 gas at STP   is 1.18  L

Which compound in 1 mol/dm3 solution has the highest PH value? a) Ethanoic acid b) Sodium chloride c) Sodium hydroxide d) Hydrogen chloride

Answers

Answer:

Explanation:

A. Ethanoic acid-acetic acid being weak acid dissocated weekly and turns solution to weakly acidic, ph will be between 4-7,

B. Hydrochloric acid - the solution would be acidic- with lots of H+ ions, Ph will be between 1-4,

C. Sodium chloride - solution prodcued netural Na+ and Cl- hence wont affect ph of solution will be equalt to 7.

D. Sodium hydrogen carbonate-NaHCO3 is weak base and the PH will be above 7,

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What is the value of x?Enter your answer in the box. The head of maintenance at XYZ Rent-A-Car believes that the mean number of miles between services is 4959 miles, with a standard deviation of 448 miles. If he is correct, what is the probability that the mean of a sample of 43 cars would differ from the population mean by less than 111 miles y.y3 write without exponts The 10% bonds payable of Kim Company had a net carrying amount (carrying value) of $2,850,000 on July 2, 2021. The bonds, which had a face value of $3,000,000, were issued at a discount to yield 12%. The amortization of the bond discount was recorded under the effective-interest method. Interest was paid on January 1 and July 1 of each year. On July 2, 2021, several years before their maturity, Kim retired the bonds at 101. The interest payment on July 1, 2021 was made as scheduled. What is the loss that Kim should record on the early retirement of the bonds on July 2, 2021 Which type of tutoring does the school normally offer?Group of answer choicesIn-seat tutoringOnline tutoringSupplemental InstructionAll of the above For a manufacturing company, selling price for an item is $480.00 per Unit, Variable cost is $248.00 per Unit, rent is $7,480.00 per month and insurance is $3000 per month. What is the contribution margin What is the pH of a solution with a hydrogen ion concentration of 2.0x10^3.(Use 3 digits) The following data were collected from a simple random sample from an infinite population. 13 15 14 16 12 The point estimate of the population standard deviation is _____. a. 1.581 b. 2.500 c. 2.000 d. 1.414 Americans are considered to be mall addicts, and this addiction is accused of increasing anti-social behavior. The assertion that malls encourage anti-social behavior is absurd. The word that is most responsible for producing the tone in the above passage is:Anti-socialAbsurdAssertion Behavior In the presidential election of 1824, Select one: a. Andrew Jackson received the most electoral votes and became president. b. John Q. Adams received the second-most electoral votes and was elected president by the House of Representatives. c. Henry Clay received the fourth-most electoral votes and was elected president by the House of Representatives. d. William Crawford received the most electoral votes, but he died before a president was chosen. e. None of these answers is correct. Write a program in c++ that will:1. Call a function to input temperatures for consecutive days in 1D array. NOTE: The temperatures will be integer numbers. There will be no more than 10 temperatures.The user will input the number of temperatures to be read. There will be no more than 10 temperatures.2. Call a function to sort the array by ascending order. You can use any sorting algorithm you wish as long as you can explain it.3. Call a function that will return the average of the temperatures. The average should be displayed to two decimal places.Sample Run:Please input the number of temperatures to be read5Input temperature 1:68Input temperature 2:75Input temperature 3:36Input temperature 4:91Input temperature 5:84Sorted temperature array in ascending order is 36 68 75 84 91The average temperature is 70.80The highest temperature is 91.00The lowest temperature is 36.00 give a description of a recent example of how this problem has displayed itself in your community what is an enzyme controlled biochemical pathway? Which is the primary type of radiation from the sun that is absorbed by the ozone layer?A. infrared radiatinB. UV-BC. X-raysD. UV-CE. UV-A If f(x) = 4^x-8 and g(x) = 5x+6, find (f + g)(x) A. (F+g)(x) = -4^x - 5x + 2B.(F+g)(x) = 4^x + 5x - 2C.(F+g)(x) = 4^x - 3x + 6D.(F+g)(x) = 9x - 2 The animals thought that perhaps there was dirt at the depths of the ocean, but they had never tried to reach the bottom before. One by one they tried to swim down, but their attempts were futile. Finally, the muskrat disappeared into the cold depth of the ocean. After a lengthy amount of time, he drifted to the surface with a tiny speck of earth in his hand. He appeared to be dead, but the animals prayed and chanted, and finally he stirred. The Earth-Diver was successful in bringing forth the soil to make the earth grow. Based on this excerpt, which character trait was valued by the Iroquois? A tire is filled with air at 22oC to a gauge pressure of 240 kPa. After driving for some time, if the temperature of air inside the tire is 45oC, what fraction of the original volume of air must be removed to maintain the pressure at 240 kPa? Paulina is writing a report titled "Entertainment Choices at Central Park in New York." Which is thebestsource for her to use? A. an article about the history of Central Park and how it was built B. a newspaper article about a performance at Central Park C. an interview of a hot dog stand owner at Central Park D. a map showing different shows that are performed at Central Park how many types of lavatory there is? Help me please guys